2888181 has 24 divisors (see below), whose sum is σ = 4530240. Its totient is φ = 1766016.

The previous prime is 2888143. The next prime is 2888189. The reversal of 2888181 is 1818882.

It is a happy number.

2888181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2888181 - 2⁶ = 2888117 is a prime.

It is a super-2 number, since 2×2888181² = 16683178977522, which contains 22 as substring.

2888181 is a modest number, since divided by 8181 gives 288 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2888189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6360 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (188760).

2^2888181 is an apocalyptic number.

It is an amenable number.

2888181 is a deficient number, since it is larger than the sum of its proper divisors (1642059).

2888181 is a wasteful number, since it uses less digits than its factorization.

2888181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 502 counting only the distinct ones).

The product of its digits is 8192, while the sum is 36.

The square root of 2888181 is about 1699.4649157897. The cubic root of 2888181 is about 142.4103221540.

It can be divided in two parts, 28 and 88181, that added together give a square (88209 = 297²).

The spelling of 2888181 in words is "two million, eight hundred eighty-eight thousand, one hundred eighty-one".